Railway replacing-frog.



No. 632,477. Patented Sept. 5, I899. B. E. TILDEN.

RAILWAY REPLACING FROG. 7

(Application filed Oct. 25, 1898.)

{No Model.)

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lhvrrnn STATES PATENT Orrrcn.

BURT E. TILDEN, OF CHICAGO, ILLINOIS.

RAILWAY REPLACING-FROG.

SPECIFICATION forming part of Letters Patent No. 632,477, dated September 5, 1899. Application filed October 28, 1898. Serial No. 694,826. (No model.)

To all whom it may concern:

Be it known that I, BURT E. TILDEN, acitizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvement-s in Railway Replacing-Frogs; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification.

The present invention relates more especially to that type of railway replacing-frogs that forms the subject-matter of my prior Letters Patent, No. 883,779, dated May 29, 1888, and my application for Letters Patent, Serial No. 606,807, filed September 24, 1896.

The object of the present improvement is to provide simple and effective construction of the replacing-frog proper-,whereby the side of the same next adjacent to the rail is held in proper and fixed relation thereto.

A further object of the present improvement is to provide an improved construction of the clamp by which the replacing-frog is secured to the rail, all as will hereinafter more fully appear and be more particularly pointed out in the claims.

I attain such objects by the construction and arrangement of parts illustrated in the accompanying drawings, in which- Figure 1 is a plan view illustrating a pair of the present replacing-frogs in place upon a railway-track,one of said frogs being shown partly in horizontal section; Fig. 2, an enlarged transverse sectional elevation at line a; :2, illustrating the attachment of the frog to a railway-rail; Fig. 3, a perspective view of the attaching-clamp detached; Fig. 4, a vertical longitudinal section of the frog; Fig. 5, a bottom plan of the same.

Similar numerals of reference indicate like parts in the several views.

As represented in the drawings, the replacing-frog 1 will be of the same general construction as in my before-mentioned patented construction and formed with an inner and outer wall that are substantially vertical, an open bottom, and a segmental top wall that inclines downwardly toward the adjacent rail. The feature of novelty in this connection involved in the present improvement consists of two vertically-extending ribs 2, cast upon the outer face of the inner or lower wall 3 of the frog 1 and projecting laterally therefrom,

as well as a slight distance below the same, as illustrated in Fig. 2. It is preferable to use two of these ribs, spaced equally 0n the wall 3 of the frog, as shown in Fig. 1, and in my preferred construction such ribs at their lower and projecting corners will be formed with squared recesses 4:, that are adapted to engage the base of the rail 1 to afford a substantial engagement against downward displacement of the frog below its proper position with relation to the rail as well as to hold the frog in proper separated relation in regard to the rail.

The clamp 5, by which the frog 1 is secured to the railway-rail, will be of the same general form and arrangement as shown and described in my copending application Serial No. 606,807 and will have a main body portion formed at one end with a hook formation 6, adapted to engage the base of the rail, and at the other end with a flange formation 7, adapted to engage the wall 3 of the hollow frog 1 next adjacent to the rail. The body portion of such clamp will have a downwardlybent nature toward the flange formation for purposes set forth in my aforesaid copending application Serial No. 606,807, to wit: to permit the lower face of the frog to be forced down into the roadway by an undue and excessive weight without such lower face of the frog coming in contact with the body portion of the clamp to strain its connection with the rail, or, on the other hand, spring or bend the rail out of proper line.

In the construction illustrated in the present drawings the hooked end 6 of the clamp will have a flattened and widened nature as compared with the body of the clamp, so as to afford a better and more substantial engagement with the base of the rail, when such clamp is forced into an oblique position with relation to the rail, which is its normal position when the frog is secured in place.

8 is a stiffening-rib formed on the back of the flange formation 7 and underneath the downwardly-bent portion of the main body portion of the clamp for the twofold purpose of strengthening the bend between such body portion and the flange formation 7, as well as to stiffen the downwardly-bent part of said body portion.

9 is an orifice through the flange formation 7 and is adapted to receive a headed bolt, &c., in cases where the clamp is used in connection with railway-rails having a base of less width than the normal, in which case it is desirable to take up for the excessive length of the clamp in order to obtain a more perfect attachment of the frog in place.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of a railway replacingfrog formed with a central crown, and provided with a pair of vertical bearing-ribs upon its inner and lower Wall, that have a spaced relation on each side of such central crown of the frog and are adapted to afiord the sole lateral contact between the frog and the base of the rail, and a clamp engaging one of the walls of the frog and the base of the rail intermediate of the vertical bearing-ribs, substantially as set forth.

2. As an improved article of manufacture a clamp for securing railway replacing-frogs to railway-rails, the same comprising a downwardly-bent body portion having a widened hook-shaped formation at one end and a flange formation at the other end, as set forth.

3. As an improved article of manufacture,

a clamp for securing railway replacing-frogs to railway-rails, the same comprising a downwardly-bent body portion, having a hookshaped formation at one end, a flange formation at the other end, and astrengthening-rib on the back of the flange formation and on the under surface of the downwardly-bent body portion, as set forth.

4. As an improved article of manufacture, a clamp for securing railway replacing-frogs to railway-rails, the same comprising a downwardly-bent body portion, having a widened hook-shaped formation at one end, a flange formation at the other end, and a strengthening-rib on the back of the flange formation and on the under surface of the downwardly bent body portion, as set forth.

5. As an improved article of manufacture, a clamp for securing railway replacing-frogs, to railway-rails, the same comprising a downwardly-bent body portion having a widened hook-shaped formation at one end, a flange formation at the other end, and a strengthening-rib on the back of the flange formation and on the under surface of the downwardlybent body portion, the flange formation being provided with a transversely-extending orifice for the reception of a headed bolt or other like device, as set forth.

In testimony whereof Witness my hand this th day of October, 1898.

B. E. TILDEN.

In presence of- ROBERT BURNS, JAMES LAVALLIN. 

